120gsm thick double-brushed microfiber with Nanotex Coolest Comfort Tech and cooling fiber fill keeps you cool in summer and warm in winter Filled with premium resilient spiral microfiber and INVISTA fiber for excellent comfort, softness and cooling feeling; Friendly to those allergic to down U-Shape quilting design keeps filling well-distributed, fits body curves and blocks cold air for all-night warmth 8 built-in ties prevent shifting; 6mm piping prevents edge breakage; Precise stitching prevents line breaks Same quilting pattern on both sides for convenient use; Machine washable and easy to fluff up SLEEP ZONE Queen Comforter Duvet Insert, Down Alternative Reversible Comforter, Lightweight, Soft and Breathable Bedding All Season, Flint Blue